Unknown authors · 2021
Researchers conducted a cross-sectional analysis of preadolescents aged 9-11 years and adolescents aged 17-18 years from the Dutch ABCD study (n=1664 preadolescents) and the Spanish INMA project (n=1288 preadolescents and n=261 adolescents). Overall whole-brain RF-EMF doses were estimated from mobile and DECT phone calls, other mobile phone uses, tablet use, laptop use, and far-field sources. Higher overall doses from all sources and from phone calls were associated with lower non-verbal intelligence in Dutch and Spanish preadolescents (-0.10 points per 100 mJ/kg/day increase, 95% CI -0.19 to -0.02), but no doses were related to any other cognitive outcome in Spanish preadolescents or adolescents.
Unknown authors · 2021
Thirty young men participated in a double-blind, sham-controlled crossover study with all-night 2.45 GHz Wi-Fi exposure. Declarative memory improved overnight with Wi-Fi exposure, but emotional and procedural memory were unaffected. No sleep-specific physiological parameters changed with exposure, so the behavioral effect lacked physiological support and may be a random finding.
Unknown authors · 2021
Researchers investigated the effects of mobile phone electromagnetic waves on hippocampal expression of two apoptotic genes in male BALB/c mice. Mice were exposed to electromagnetic waves for 0.5, 1, 2, or 4 hours twice daily for 30 days, with an additional group receiving 4 hours once daily and a control group receiving no radiation. The study found that mobile phone radiation can cause considerable changes in the balance of Bax/Bcl2 mRNA expression in the mouse hippocampus.
Kumar, R , Deshmukh, P.S. , Sharma, S., Banerjee, B.D. · 2021
Unknown authors · 2021
Researchers exposed rats to 2.1 GHz radiation at 45 V/m or 65 V/m for one week and compared them to a sham-exposed group. They tested memory using object location and Y-maze tasks. Rats exposed to 65 V/m performed worse on both memory tasks. The same rats had lower hippocampal levels of the cholinergic biomarkers AChE, ChAT, and VAChT.
Elamin AAE, Deniz OG, Kaplan S · 2021
Fifty-four 12-week-old male Wistar albino rats were randomly divided into nine groups of six, and the EMF+Cur, EMF+GK, EMF+GA, and EMF groups were exposed to 900MHz EMF for one hour a day for 28 days. Stereological analysis showed a significant decrease in the total number of CA pyramidal neurons in the EMF group compared with control and sham groups. The EMF group also had significantly higher catalase and superoxide dismutase activities than controls.
Unknown authors · 2021
During operation, mobile phones emit energy in the form of electromagnetic fields that can be absorbed by the user's head. Researchers studied the influence of mobile phone exposure on nervous response by analyzing electrophysiological measurements of brain wave activity. EEG test measurements were taken when the participant was not using and when using a mobile phone.
Estimated whole-brain and lobe-specific radiofrequency electromagnetic fields doses and brain volumes in preadolescents Alba Cabré-Riera et al. · 2020
The study analyzed 2,592 preadolescents aged 9 to 12 years from the Generation R Study in Rotterdam, Netherlands. An integrated exposure model estimated whole-brain and lobe-specific radiofrequency electromagnetic field doses from sources such as phone calls, tablet use, laptop use, and far-field sources. The estimated overall whole-brain dose was 84.3 millijoules per kilogram per day, with the highest lobe-specific dose in the temporal lobe at 307.1 millijoules per kilogram per day. Overall doses from all sources, phone calls, and far-field sources were not associated with global, cortical, or subcortical brain volumes. However, higher whole-brain dose from mobile phone internet use, texting, tablet use, and wireless laptop use was associated with a smaller caudate volume.
Kostoff et al · 2020
The article identifies adverse effects of non-ionizing non-visible radiation reported in the premier biomedical literature. It emphasizes that most laboratory experiments are not designed to identify severe adverse effects reflective of real-life operating environments. The article presents evidence that 5G technology will have adverse systemic effects beyond skin and eyes.
Unknown authors · 2020
The researchers designed a coil to generate vortex magnetic fields and tested their effect on amyloid β aggregation and on SH-SY5Y neuroblastoma cells. Amyloid β exposed to vortex magnetic field for 24 hours showed about 86% less fibril formation than controls. Vortex magnetic field stimulation also reduced amyloid β fibril cytotoxicity and increased viability of SH-SY5Y neuroblastoma cells.
Unknown authors · 2020
Researchers tested honey bees in three experiments: a sucrose feeder, a flower patch with color-dependent magnetic fields, and a Y-maze with alternating colors on a stronger magnetic field. In free-flying feeder experiments, magnetic field served as a temporary cue, but bees preferred an equal caloric alternative with a weaker magnetic field. Flower patch experiments showed initial color biases were abandoned in response to magnetic field induction, and laboratory experiments revealed a color-dependent behavioral response to the magnetic field.
Haghani M et al. · 2020
During all days of pregnancy, rats in the EMF-exposed group were exposed to 900 MHz pulsed-EMF radiation for 6 h per day. The exposure group demonstrated reduced spontaneous firing associated with upward and rightward shift in I/V curve compared to the control rats, and the peak amplitude of the current for the exposure pups also revealed a significant decrement. The reversal potential was +40 mV and +20 mV for the control and RF-EMF groups, respectively and showed significant differences between the two groups.
Unknown authors · 2020
Unknown authors · 2020
Rats were exposed to RF-EMF for four weeks at 0, 1.5, or 6 W/kg, or kept as cage controls. Once a week they received NMDA or saline injections before a two-temperature choice test between 50°C and 28°C. In control and sham rats, NMDA reduced latency to escape heat by 45% compared to saline. Heat avoidance increased by 40% in the 6 W/kg group compared to sham. The RF-EMF effect on heat avoidance was abolished after NMDA treatment.
Nakatani-Enomoto S et al. · 2020
Researchers studied the effects of LTE-like electromagnetic fields for 30 min on awake EEG. Thirty-eight healthy volunteers aged 20 to 36 years participated. The maximum local specific absorption rate averaged over 10-g mass was 2.0 W/kg. Theta and alpha band waves were enhanced after both real and sham exposures, which the authors suggested may be due to participant drowsiness. The study concluded that LTE-like exposure for 30 min showed no detectable harmful effects on awake EEG in healthy humans.
Eggert T, Dorn H, Sauter C, Schmid G, Danker-Hopfe H · 2020
Azimzadeh M et al. · 2020
Researchers exposed pregnant Sprague-Dawley rats and their pups to 900 MHz radiofrequency waves from a base transceiver station antenna during gestation or the first 21 days after birth for 2 h/d or 4 h/d. Passive avoidance learning and memory were assessed in 45-day-old pups with a shuttle box, and hippocampal histomorphology was examined. All exposed subgroups showed impaired passive avoidance learning and memory, the prenatal exposure group had the greatest deficit, and a mild decrease in pyramidal cell density was seen in exposed subgroups I and III.
Unknown authors · 2020
Pregnant rats were exposed to radiofrequency fields starting on day 21 of pregnancy, and offspring were tested with Y maze at 3 weeks, open field at 7 weeks, and hippocampal NMDAR expression at 9 weeks. The 1800 MHz and 1800 MHz + WiFi groups showed a downward trend in body weight, and the WiFi group opened eyes earlier than controls. In open field tests, the 1800 MHz + WiFi group had shorter overall path length and delayed stationary time, the WiFi group had shorter path length and increased velocity in the error arm, and the 1800 MHz + WiFi group showed increased central area activity. Both exposure groups down-regulated NR2A and NR2B and up-regulated NR2D, NR3A, and NR3B, while the WiFi group also up-regulated NR1 and NR2C.
Unknown authors · 2020
Researchers applied a 2-h head-only GSM-1800 MHz exposure to rats with LPS-induced acute neuroinflammation, to healthy rats, and to transgenic hSOD1 G93A rats modeling presymptomatic ALS. Gene responses were measured 24 hours later in a motor area of the cerebral cortex where the mean SAR was 3.22 W/kg. In LPS-treated rats, RNA-seq revealed significant but moderate gene expression changes affecting 2.7% of expressed genes, including neuronal and glial genes and genes involved in protein ubiquitination or dephosphorylation.
Jeong et al. · 2020
Public concerns exist about deleterious biological consequences of radiofrequency electromagnetic fields. These concerns have led to wide consideration of the potential effects of RF-EMF on the central nervous system.
Azimzadeh M, Jelodar G · 2020
The study examined the effects of 900 MHz RFW on brain iron, copper, zinc, and manganese concentrations and the protective role of vitamin E. Twenty adult male Sprague-Dawley rats were divided into four groups: control, vitamin E only, vitamin E plus RFW exposure, and RFW exposure only. The rats were exposed to RFW for 30 consecutive days at 4 hours per day while freely moving in the cage. Brain tissue levels of the elements were measured on the last day using atomic absorption spectrophotometry. Exposure significantly increased iron, copper, manganese, and the copper-to-zinc ratio while decreasing zinc, and vitamin E pre-treatment improved iron, copper, manganese, and the ratio but not zinc.
Unknown authors · 2020
Vanbergen AJ et al. · 2019
The authors assessed whether artificial light at night and radiofrequency electromagnetic radiation from wireless technologies and power lines threaten pollinators. They found that knowledge of the risk is inconclusive, unresolved, or only partly established because of a lack of high-quality studies. Some studies show artificial light at night can alter pollinator communities, pollination, and fruit set. Laboratory experiments show honey bees and other invertebrates can detect electromagnetic radiation, but do not show it affects insect behavior in ecosystems. Robust evidence of radiofrequency radiation impacts on pollinator abundance or diversity is limited to a single study with mixed results.
The effect of Wi-Fi electromagnetic waves on neuronal response properties in rat barrel cortexSistani S et al. · 2019
Researchers exposed 29 male Wistar rats to Wi-Fi radiation for 1 hour and recorded neuronal responses in the barrel cortex. Wi-Fi radiation decreased the condition test ratio for ON responses. Spontaneous activity and ON and OFF responses were not significantly changed. The researchers concluded that Wi-Fi radiation could modulate integrative responses to natural stimuli in barrel cortex.
Meo et al · 2019
Human exposure to radio-frequency radiation has grown more than 100,000-fold since World War II. In 2011, IARC classified RFR as a possible human carcinogen. Three large-scale rodent studies found significantly increased rates of Schwannomas, malignant gliomas, and chromosomal DNA damage from RFR exposures mimicking lifetime human exposures. Compared with an adult male, a cell phone held against a child's head exposes deeper brain structures to greater radiation doses per unit volume, and the child's skull bone marrow absorbs a roughly 10-fold higher local dose. Recent reports suggest that men who keep cell phones in their trouser pockets have significantly lower sperm counts and significantly impaired sperm motility and morphology, including mitochondrial DNA damage.
